#include <stdio.h>

#define MAX(X, Y) ((X) > (Y) ? (X) : (Y))

int main()
{
    int a = 10;
    int b = 11;
    int max = MAX(a++, b++);
    printf("%d\n", max);
    printf("%d\n", a);
    printf("%d\n", b);
    return 0;
}